Here are all the links for the sources
NewPing library = https://bitbucket.org/teckel12/arduino-new-ping/downloads/ Adafruit Servo Driver library = https://github.com/adafruit/Adafruit-PWM-Servo-Driver-Library Adafruit BusIO library = https://github.com/adafruit/Adafruit_BusIO NewPing ESP8266 library = https://github.com/jshaw/NewPingESP8266 The chassis = https://scionelectronics.com/product/3d-printed-otto-robot-with-arms-made-in-sl/ Electronics = https://alphatronic.lk/
For more updates, stay tuned..... I hope making this robot would be fun to you.....